Shocks for a 2" lifted Wagoneer

When I bought the Wag, it stood taller than most Wagoneers, as though
it had a 2" (give or take) suspension lift. The springs appear to be
the factory heavy-duty suspension option. The rear has 2-3" lift blocks,
so I'm guessing the fronts may have been re-arched at some point to
match, then sagged some. It also had some ancient Monroe shocks of
approximately stock length which felt pretty squishy. Disconnecting
the lower mounts indicated that the front shocks allowed only 1" of
droop beyond the normal rest position (18.5" eye-to-eye). The rear
shocks were slightly better off, allowing about 2.5" of droop. This
meant that every time a wheel tried to drop into a hole or off of a
speed bump, the shock would bottom out and the vehicle body would be
jerked downward, making for a rough ride and bringing about a premature
demise for the shocks.

I'd originally had my eye on the
Edelbrock IAS shocks for the Wag. They're reputed to be the best
on-road shock available, but that quality comes with a $75/shock price
tag. The Rancho
RSX shocks use a similar technology with similar results. When
I saw that Rancho was running their "buy 3, get 1 free" deal, I decided
to spend $150 on RSX's instead of $300 on IAS's.

Disconnecting the shocks and maximizing the axle articulation as best
I could indicated that I could really use 21" long shocks up front
and 23" long shocks in the rear. I solicited the help of Jamison at
Advance Auto and his Rancho parts catalog. It turns out Rancho doesn't
make an RSX for lifted FSJ's -- at least not intentionally. By comparing
the eye style and my required lengths with the list of all RSX shocks,
we found that several Ford F150/Bronco shocks would work well for my
lifted FSJ. These shocks have an EB1 upper eye ("E" for eye, "B" for
bushing w/o a metal sleeve) on top and an ES65 eye ("S" for metal sleeve,
"65" for 12mm I.D.) on the bottom.

Rancho Part #

Compressed Length

Extended Length

Application

12.000"

19.25"

approximate original front

12.500"

20.50"

approximate original rear

15.000"

21.00"

my minimum new length, front

15.000"

23.00"

my minimum new length, rear

RSX17007

13.000"

20.75"

stock '76-91 Wag/Chero/GW, '63-73 4x4 Gladiator, '82-86 CJ-7/8

RSX17016

13.500"

21.75"

'80-96 4x4 Bronco, '80-84 4x2 F-150

RSX17301

14.875"

24.50"

'94-96 4x4 Bronco

RSX17009

14.875"

24.75"

'80-96 4x4 F-150, '80-91 4x4 F-250

The 17016's were perfect for up front. I debated going with 17301's
in back to allow for full droop, but ended up getting 17016's all around.
Since the Wag will be used for towing and never for serious wheeling,
I figured the extra compression was more important than the extra droop.
I wish they had something closer to 14.0-23.0" for a rear shock
so I could maximize hard-bump tolerance and not waste 1.5" of
unneeded extension. Lowering my bump stops will probably be a priority
when I start towing a lot.

4-Wheel Parts Wholesalers,
where I bought the RS9000's on my YJ, had free shipping on shocks at the
time, so that's where I orderd my RSX's from. When I placed my order,
they claimed to have the shocks in stock, but when they didn't show
up a week later, I called & found that they'd been back ordered and
actually got shipped four days later than expected. I wasn't in a
hurry, so this was no big deal.

Removing the old shocks was simple except for some stubborn nuts (with
insufficient clearance for my impact wrench) and the left rear upper
mount. That shock eye was sandwiched on the pin behind a mounting
tab for the gas filler tube. In order to remove the tab far enough
to get the shock eye off & on, I had to disconnect the filler tube
at the rear end under the body (see here)
and pull it to the right. Even then it was a tight fit.

The only problem installing them was that Rancho insists on using
12mm ID sleeves, which are .5mm smaller than the stock 1/2" bolts.
7/16" bolts will work, but they're quite loose and will rattle around.
Fine thread M12 x 60mm metric bolts are $4 each around here, so
I opted for the coarse thread versions at $2 each.

The old shocks offered very little resistance to compression, which
explains the soft, yacht-like ride and terrible cornering. The new
RSX's offer much better handling, especially around corners. They're
also much better over speed bumps thanks to their correct length.
I do feel rough roads more than I'd like, but it's not too
annoying, and well worth the improved handling I now have.

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